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From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
Cc: kvm-devel <kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
Subject: Re: State of current pv_ops backend for KVM?
Date: Tue, 29 May 2007 14:47:12 +0300	[thread overview]
Message-ID: <465C12C0.9030906@qumranet.com> (raw)
In-Reply-To: <465B87CE.6030801-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>

Anthony Liguori wrote:
> Howdy,
>
> Does anyone know what the state of a pv_ops backend for KVM is?  I 
> know Ingo has an implementation that implements CR3 caching but I 
> don't see any branches in Avi's git tree.
>
> Perhaps we should try for a simple pv_ops backend for 2.6.23 seeing as 
> how the host infrastructure is there?  I'd be willing to do some leg 
> work here... 

I think we should aim for a full direct paging implementation, where the 
cr3 cache is just the cherry on top that makes context switches proceed 
at native speed.  Jun has a paper on it for OLS and I hope patches too.

A minor drawback with direct paging is that you are more or less forced 
to use pae on the guest, but I think that's acceptable.

-- 
error compiling committee.c: too many arguments to function


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  parent reply	other threads:[~2007-05-29 11:47 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-29  1:54 State of current pv_ops backend for KVM? Anthony Liguori
     [not found] ` <465B87CE.6030801-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-05-29  6:11   ` Ingo Molnar
     [not found]     ` <20070529061128.GA27037-X9Un+BFzKDI@public.gmane.org>
2007-05-29  6:11       ` Ingo Molnar
2007-05-29 11:47   ` Avi Kivity [this message]
     [not found]     ` <465C12C0.9030906-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-05-29 13:49       ` Anthony Liguori
     [not found]         ` <465C2F75.3080603-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-05-29 14:00           ` Avi Kivity
     [not found]             ` <465C31F2.8080007-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-05-29 14:19               ` Anthony Liguori
     [not found]                 ` <465C3671.9000404-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-05-29 14:28                   ` Avi Kivity
2007-05-30  2:35               ` Rusty Russell
     [not found]                 ` <1180492544.30202.72.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-05-30  5:01                   ` Avi Kivity
     [not found]                     ` <465D051F.20706-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-05-30  6:04                       ` Rusty Russell
2007-05-30  2:24   ` Rusty Russell
     [not found]     ` <1180491861.30202.61.camel-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2007-05-30  2:51       ` Anthony Liguori
     [not found]         ` <465CE6AD.7000206-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org>
2007-05-30 18:02           ` Zachary Amsden
     [not found]             ` <465DBC39.7090308-pghWNbHTmq7QT0dZR+AlfA@public.gmane.org>
2007-05-30 18:20               ` Anthony Liguori

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